Do you understand Euclid today?

Fortunately, the Lin family did not buy a new house in the past seven years due to amnesia. Lin Qianshu touched his home with the memory of seven years ago and opened the door of the house.

Lin Qianshu stood at the entrance, looking at the strange yet familiar room, feeling a little dazed.

Footsteps were heard on the stairs, Lin Qianshu turned around, and Jiang Yizhi, who had parked his car, was walking upstairs slowly.

"Come in." Lin Qianshu changed into his slippers, took a pair of guest slippers from the shoe rack and gave them to Jiang Yizhi, "Well, I don't remember exactly, you... just do it yourself."

After losing seven years of memory, Lin Qianshu looked at everything at home with a sense of "everyone is here to find fault". Before Lao Lin and his wife went abroad to play, they covered all the commonly used things in the house with dust covers and cut off the power supply. It doesn't look like much life.Where he could see it, Lin Qianshu found that there was an additional photo wall in the living room. On the wall were many Polaroid photos.He took a closer look, and there were many photos of a family of three on it, both alone and in groups. Lin Qianshu even found Jiang Yizhi in some of the photos.

"Jiang Yizhi, you are in this photo." Lin Qianshu took down one of the photos and excitedly called Jiang Yizhi to take a look.

The background of the photo was on a beach, and it was dusk. Lin Qianshu was standing in front of the bonfire, holding a grilled fish for the camera and squinting his eyes while smiling. Jiang Yizhi stood behind him and looked down at the barbecue stove beside him.

"When was this..." Lin Qianshu leaned closer to the photo, trying to find the answer from the details, but finally turned to look for Jiang Yizhi, "Do you know?"

Jiang Yizhi took a closer look: "Junior summer vacation."

My junior summer self... Lin Qianshu sighed, "Oh, unfortunately, I don't remember."

A hand came across from the side, took the photo from Lin Qianshu's hand, and hung it back on the photo wall.

"Go again next time." Jiang Yizhi let go of the clip, "Take a new one."

Lin Qianshu's boredom was inexplicably dispelled by Jiang Yizhi's words. He tilted his head to look at Jiang Yizhi: "Go together?"

"Let's go together." Jiang Yizhi replied firmly.

Fortunately, the location of the study has not changed. Lin Qianshu easily found his guqin in the cabinet of the study, and also saw many favorite items from the past - figures, models, board game cards... Lin Qianshu squatted in front of the cabinet, his thoughts were full of thoughts for a while, he murmured: "How determined are you to hide them all?"

Lin Qianshu sat cross-legged on the ground, opened the bag containing the guqin, and found that the guqin inside was not as thick as he had imagined. He tried a few notes and found that the pitch of the guqin was basically on line. I have been secretly maintaining this piano all the time.

Even Lao Lin hoped that he could pick up the guqin again.Lin Qianshu touched the body of the piano with mixed emotions.

"Are you ready?" Jiang Yizhi knocked on the door a few times, then stood by the door and asked.

Lin Qianshu concealed his complicated emotions, put the piano on his back, and gently closed the door of the bookcase.

"Okay, let's go." He said to Jiang Yizhi, "My dad has already contacted the uncle of the association to send the guqin to the school directly for the four of them to practice."

——When Lao Lin heard that Lin Qianshu was going to show off his guqin style with the students at the school performance, he immediately showed his unlimited support for his son. He personally contacted the director in charge of external activities in the association and lent four Guqin for beginners.

Before Lin Qianshu left, he looked through every part of the house carefully, and then locked the door with some reluctance.

After leaving the house, Lin Qianshu and Jiang Yizhi walked downstairs side by side.As he walked, he asked Jiang Yizhi curiously: "How many times have you been to my house before?"

When going out in the morning, Lin Qianshu asked Jiang Yizhi if he wanted to help him with the navigation, but Jiang Yizhi dismissed him lightly with "I've been there".Then Lin Qianshu looked at Jiang Yizhi and found his home without relying on navigation.Look at this posture, it is proficient.

Jiang Yizhi: "Many times."

"Then it seems that Ms. Ming and Lao Lin must like you very much." Lin Qianshu said.

After the equipment was in place, the guqin learning team that was suddenly established began to practice formally.Although the official training time is only three nights a week, the excited radar will pull Jiang Yixing to report to the music classroom almost every night.

In the words of Radar, he has rarely been an official since he was a child, and the team leader must be of value and level.

As soon as Radar and Jiang Yixing left, Xiang Xiaojun also ran to the music classroom. The three of them supervised and improved each other. On the contrary, Guan Ming, who still had a math competition task, became the one with the least training time.However, when Lin Qianshu first started teaching, he discovered that among the four people, the one with the strongest musical instrument foundation also had to play the piano. He only listened to Lin Qianshu taught the most basic fingerings, and he was able to start playing intermittently along with the score.

Three hardworking and one talented, the four of them are not slow to learn.

After practicing fingering and the most basic scales for nearly ten days, Lin Qianshu distributed a new sheet music, which was the repertoire that the four of them would perform at the club performance.The piece is "Guan Shanyue". The fingerings that need to be mastered are not too difficult, but there are certain requirements for speed and proficiency. Lin Qianshu demonstrated how to play it in front of several people, and then dismantled fingering one by one. Speak, and try to let the four people remember every sentence in their hearts.

After teaching it a few times, Lin Qianshu rubbed his stiff hands, let them practice on their own, and went outside to get a glass of water to drink.

In the evening, Jiang Yizhi was called to answer questions for the third-year math competition students. Lin Qianshu walked alone in the empty corridor, listening to the echo of footsteps, feeling a little chill down the spine.

Kick kick.

Lin Qianshu heard some inexplicable noise in his footsteps, as if he suddenly didn't walk in order and was a beat slower.

...It's okay if I don't walk neatly.Lin Qianshu swallowed, nervously took out his cell phone, and clicked on the music player to find a song to boost his courage.

The moment the music started, Lin Qianshu saw that the voice-activated lights on the road ahead suddenly turned on, and the slow footsteps gradually accelerated and became louder and louder.

"teacher LIN!"

Lin Qianshu's hand shook, and he almost missed the phone.

He turned his head, looked at the girl who was smiling brightly at him, and twitched the corners of his mouth: "...So it's Wang Siyu's classmate."

Ever since the non-questionable conversation with Lin Qianshu, the relationship between Wang Siyu and Lin Qianshu has become a "relatively close teacher and student". Lin Qianshu also knew the little secret of Wang Siyu's crush on Jiang Yixing. Share your experience on the road of secret love with Lin Qianshu.

The girl put her hands behind her back, blushed and lowered her voice suddenly: "Is Jiang, Jiang Yixing still practicing in there?"

Not even to see myself.Lin Qianshu maintained an awkward yet polite smile: "Still practicing inside."

Standing on tiptoe, Wang Siyu glanced in through the high window. The young man with a lazy face was sitting cross-legged in the corner, reaching out to pluck the strings a few times from time to time.

Seeing this, Wang Siyu's face became even redder.

"You can blush just like that," Lin Qianshu was stunned, and whispered, "Then the day of the official performance, you can't blush all over..."

Wang Siyu corrected Lin Qianshu: "No, every day when I can see my brother is a day that makes me blush and heartbeat."

Today's high school girls are too good at talking.Lin Qianshu was convinced, and he gestured through the door with his thumb: "Do you want to come in and take a look?"

Wang Siyu's eyes lit up: "Is it okay?"

"There's nothing wrong with that." Lin Qianshu thought that the four of them would have to wait for the audience sooner or later, so it's better to get used to it in advance, "Come in."

So the four people who were competing with the strings in the music classroom, after the teacher went out for a trip, there was an extra audience inexplicably.

"Keep playing." Lin Qianshu dragged a chair for Wang Siyu to sit on, and pointed out the problems of the four of them one by one, "Radar, you are using too much force, be gentle with the strings, I'm afraid you haven't played yet." It broke when I played on the stage; Xiang Xiaojun, you are the opposite of Radar, you have to use your strength, and the sound is almost inaudible; Guan Ming, you are not bad, but you have to integrate emotions when playing the piano, you are too much like AI playing the piano, so it’s not good ;Jiang Yixing..." Lin Qianshu's eyes fell on Jiang Yixing, and he clearly felt that the girl's eyes were also looking over him.

"Jiang Yixing," Lin Qianshu rubbed the corners of his eyebrows, "You got the sheet music upside down."

"Pfft -" Lin Qianshu couldn't help laughing when he heard the radar.

In the midst of suffocated laughter, Jiang Yixing adjusted the music score expressionlessly, and he turned his head to look at the radar with a "you are dead" expression.

Lin Qianshu took out his phone and gave Jiang Yizhi a thumbs up: "Your brother is truly a treasure in the world."

After laughing and quarreling, the four of them lowered their heads and continued to practice. Lin Qianshu listened here and there, stopping from time to time to correct his fingering mistakes, and the night passed quickly.

When it was time to practice the whole song for the second time, the four of them could basically follow the song down smoothly.After hearing it a few times, Lin Qianshu let them practice freely, while he opened the English novel he brought from home and flipped through it.

"Mr. Lin, what are you doing?"

Today, Wang Siyu also came to watch the rehearsal. She sat and looked at Jiang Yixing's side face for a while, and accidentally found that Lin Qianshu was reading with his head down, so she leaned over to look curiously.

Lin Qianshu showed her the cover: "Read some novels to improve your English."

"Why don't you read the Chinese translation?"

The fact that Lin Qianshu and Jiang Yizhi only took the competition class for one year, the students in the competition class didn't know. Lin Qianshu just smiled and didn't explain much.

"Ms. Lin, someone gave you this book, right?" Wang Siyu asked suddenly.

How could Lin Qianshu know whether this book was bought by himself or given by someone else: "I don't know, how did you find out?"

Wang Siyu stretched out her hand and pointed to the three English words on the title page: "Tomylove, for my true love...it must be from your girlfriend."

It was only then that Lin Qianshu realized that there were three English letters like this written on the novel that he brought out with him.

The author has something to say: whose book is it?